<style>
  .modal-sm {
      margin-top: 100px !important;
      width: 326px;
  }
</style>
<div style="border-width: 2px; border-color:white; padding:12px; width: 600px;padding-top: 50px;text-align: center;">
  <div id="qrcode" ng-click="ok()"></div>
  <div class="text-center">
      <h3>请在图片上右键另存为下载图片</h3>
  </div>
</div>